Amid its renewed threats, North Korea has notified South Korea that it will carry out a live-fire drill on Monday near the disputed inter-Korean maritime border.
Seoul's Joint Chiefs of Staff says the North sent a fax to the South Korean navy this morning, announcing the exercises in seven West Sea border regions, north of the Northern Limit Line.
It did not give a specific time for the planned exercise, but demanded that Seoul keep its vessels out of the training zone.
Seoul's defense ministry said the North's intentions may be hostile and that it's keeping a close watch for possible clashes.